What is the difference in passenger-kilometers by rail between ARM and KHM?

10.00 million million passenger-km, with ARM ahead.

How many years of comparable data are there for ARM and KHM?

8 years are reported by both, from 1997 to 2005.

Where does this data come from?

International Union of Railways (UIC) and OECD, via World Bank (2026) – processed by Our World in Data, published as Passenger-kilometers by rail. Statizoid refreshes it automatically from the source and publishes the full history for both places.

ARM vs KHM: Passenger-kilometers by rail

ARM

55.00 million million passenger-km

in 2017

KHM

45.00 million million passenger-km

in 2005

ARM rank

87th

KHM rank

88th

Passenger-kilometers by rail over time

How they compare

ARM currently reports 55.00 million million passenger-km against 45.00 million million passenger-km in KHM, a difference of 10.00 million million passenger-km.

That makes ARM's figure about 1.2 times KHM's.

The two have swapped places 3 times across 8 shared years of data; in 1997 it was ARM ahead.

ARM ranks 87th and KHM ranks 88th of 101 countries.

Across the 2 decades both report, ARM averaged higher in 1 and KHM in 1.

Head to head by decade

Decade	ARM	KHM	Difference	Ahead
1990s	60.67 million million passenger-km	47.40 million million passenger-km	13.27 million million passenger-km	ARM
2000s	38.40 million million passenger-km	42.68 million million passenger-km	4.28 million million passenger-km	KHM

Averages of every year both report within each decade.

Frequently asked questions

Which has higher passenger-kilometers by rail, ARM or KHM?: ARM, at 55.00 million million passenger-km against 45.00 million million passenger-km in KHM as of 2017.
What is the difference in passenger-kilometers by rail between ARM and KHM?: 10.00 million million passenger-km, with ARM ahead.
How many years of comparable data are there for ARM and KHM?: 8 years are reported by both, from 1997 to 2005.
How do ARM and KHM rank globally for passenger-kilometers by rail?: ARM ranks 87th and KHM ranks 88th of 101 countries.
Where does this data come from?: International Union of Railways (UIC) and OECD, via World Bank (2026) – processed by Our World in Data, published as Passenger-kilometers by rail. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Individual pages

About this data

Indicator: Passenger-kilometers by rail
Unit: million passenger-km
Source: International Union of Railways (UIC) and OECD, via World Bank (2026) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 101 places, 2,125 data points, 1995–2021
Last refreshed: 07 August 2026

The number of passengers transported by rail, multiplied by the kilometers traveled. This is measured in passenger-kilometers.